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Window replacement guide

Window changing step

How to choose a window

First, the preliminary preparation

1 archive

The first step is to go to the property. Property will tell you whether the style and color of the window can be changed. Generally, the whole building will inform you of the style and color of the window, and ask in advance whether the window can be changed. If the property does not agree, it will be fined.

2 measuring rulers

Find at least three door-to-door measuring rulers, and then take photos and compare them, and you will find the problem. The size of the window has not changed, but the area they finally calculated is different, because the calculation method is different. Some manufacturers use the outer ruler as the inner ruler!

Price calculation method of broken bridge aluminum casement window:

Total price of broken bridge casement window = area * unit price+number of windows * unit price of windows. If large glass needs to be installed on the ground, the glass thickness should be upgraded according to the size of the glass area, and the upgrade cost and hoisting cost should be increased. If you need anti-ultraviolet glass, you need to make up the difference.

If the single-sided window is less than one square meter, it shall be calculated as one square meter.

3. Old windows are sold in advance

Contact the window recycler in advance and remove the new window the day before going home. It usually takes about 4 hours to remove it, and it is not a problem to sell it for one or two thousand. The installer of the new window is also responsible for removing it, but it is unwritten that who removed the window belongs to whom, so it was sold in advance!

Second, the window category.

Do not use plastic steel! Select Broken Aluminum and "System Window"!

System window is also a concept that only appeared in recent two years. Don't look at the difference between the system window and the broken bridge aluminum mentioned in the marketing number. I ran several times, but the manufacturer couldn't understand it.

The difference between system window and ordinary window is the same as Lenovo computer and DIY computer assembled by itself. The difference lies in the parts used, the quality of various materials and the matching degree. In order to achieve better sound insulation, warm in winter and cool in summer, the matching degree of various materials will be higher, the design will be better and the performance will be more stable.

The advantages of system window are only the advantages of good broken aluminum, heat insulation strip and multi-layer glass.

There is no doubt that the system window is much better than the broken bridge aluminum.

You can choose the system window if you have more budget, and it is enough to have less broken bridge aluminum.

Third, choose a window.

1. Do you want to change the window brought by the developer?

If the developer is a plastic window, change it! If it is a broken bridge aluminum window, it can be replaced in a few years, saving some money.

2. Window opening method

The sliding window is poorly sealed, and the more it is used in the later period, the looser it becomes. The adhesive tape of casement window is tightly sealed, and it is more practical to open inside and pour inside (it will be more expensive to pour inside).

3. Glass can be selected in this way.

Pay attention to sound insulation, you can choose double laminated glass. If the roadside is particularly noisy, you can choose three layers of laminated glass for better noise reduction.

Pay attention to the choice of heat preservation. In northern winter, it is enough to fill the middle of double-layer insulating glass with inert gas.

Keep warm and reduce noise, you can choose double-layer hollow laminated glass. If the noise is unbearable, you can choose three layers of hollow laminated glass.

Upgrade can choose low-E coating, heat insulation in summer and heat insulation in winter.

4. Thickness of window frame

The sound insulation effect can be better if there are more than 60, 70, 75, 80 and 70. For high-rise buildings, above 75, the larger the value, the more stable it is.

5. Heat insulation strip

Choose PA66 nylon insulation strip instead of PVC, or it will be loose in two years.

6. Gland piece

Choose EPDM rubber sealing strip, anti-aging, don't worry about cracking.

7. Thickness

At least above 1.6mm, with good sound insulation and sealing effect. The thickness of aluminum should be above 1.8 mm, and the wall thickness of large French windows should be above1.8mm..

8. Beware of price wars

The low-priced broken bridge aluminum in the market may use fake recycled aluminum, which is easy to be oxidized and deformed. The color of the recycled aluminum window frame at home is gray and dim, and the original aluminum has luster and high brightness. You can ask the merchant for the inspection report of aluminum.

Fourth, installation

1 installation time

After the water and electricity, the bricklayer should install windows before entering the site, otherwise the bricklayer will enter the site, and all kinds of auxiliary materials will be piled up in the room, so it is impossible to construct and there is dust.

2 glue

It should be glued inside and outside, and the window seller should bring it. You can also prepare some glue yourself, but it is also a big expense. Every glass seam outside should be glued, so be sure to check it carefully, or it will leak in the future.

3 waterproof

Be sure to waterproof the base structure, check whether there is water seepage in the original base structure, and handle the slope of the outer window sill in advance to prevent water accumulation.

4 deposit

When you're done, don't give money in a hurry, put down a few hundred deposits, ask for a period of time, and then pay the full amount if there is no problem.